<template>
  <section>
    <!--工具条-->
    <!--    高级查询-->
    <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
      <el-form :inline="true">
        <el-form-item>
          <el-input v-model="keyword" placeholder="请输入关键字"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" v-on:click="keywordQuery" v-perm="'department:list'">查询</el-button>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="handleSave" v-perm="'department:save'">新增</el-button>
        </el-form-item>
      </el-form>
    </el-col>

    <!--列表-->
    <el-table :data="Departments" highlight-current-row v-loading="listLoading" @selection-change="selsChange" style="width: 100%;">
      <el-table-column type="selection" width="55">
      </el-table-column>
      <el-table-column type="index" width="60">
      </el-table-column>
      <el-table-column prop="sn" label="部门编号" width="120" sortable>
      </el-table-column>
      <el-table-column prop="name" label="部门名" width="100"  sortable>
      </el-table-column>
      <el-table-column prop="state" label="部门状态" width="100" sortable>
        <template scope="scope">
          <span style="color: green" v-if="scope.row.state === 1" >启用</span>
          <span style="color: red" v-if="scope.row.state === 0">禁用</span>
        </template>
      </el-table-column>
      <el-table-column prop="departmentManager.username" label="部门经理" width="120" sortable>
      </el-table-column>
      <el-table-column prop="parent.name" label="上级部门" width="180" sortable>
      </el-table-column>
      <el-table-column label="操作" width="150">
        <template scope="scope">
          <el-button size="small" @click="handleEdit(scope.$index, scope.row)" v-perm="'department:save'">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.$index, scope.row)" v-perm="'department:delete'">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!--工具条-->
    <el-col :span="24" class="toolbar">
      <el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
      <el-pagination layout="prev, pager, next" @current-change="handleCurrentChange"
                     :current-page="currentPage" :page-size="pageSize" :total="totals" style="float:right;">
      </el-pagination>
    </el-col>

    <!-- 添加或修改的对话框
    el-dialog - elementUi提供的对话框 = 模态框
      :title="title" - 动态改变标题
      :visible.sync="saveFormVisible"  - 模态框的显示状态
      :close-on-click-modal="false" - 关闭模态框只能通过模态框的x关闭，点击空白处不能关闭模态框
    el-form - 表单
      :model="saveForm" - 绑定表单对象
      label-width="80px" - 标签宽度
      :rules="saveFormRules" - 验证规则
      ref="saveForm" - 为当前模态框取名
      prop="name" - 如果当前字段要验证，就必须写，出现*
      auto-complete="off" - 不自动提示
-->
    <el-dialog :title="title" :visible.sync="saveFormVisible" :close-on-click-modal="false">
      <el-form :model="saveForm" label-width="80px" :rules="saveFormRules" ref="saveForm">
        <el-form-item label="部门编号" prop="sn">
          <el-input v-model="saveForm.sn" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="部门名称" prop="name">
          <el-input v-model="saveForm.name" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="部门状态">
          <el-radio-group v-model="saveForm.state">
            <el-radio class="radio" :label="1">启用</el-radio>
            <el-radio class="radio" :label="0">禁用</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="部门经理">
          <el-select v-model="saveForm.manager_id" value-key="id" placeholder="请选择" clearable>

            <el-option v-for="item in managers"
                       :label="item.username"
                       :value="item.id">
              <span style="float: left">{{ item.username }}</span>
              <span style="float: right; color: #8492a6; font-size: 13px">{{ item.phone }}
            </span>
            </el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="上级部门">
          <el-cascader v-model="saveForm.parent_id"
                       :options="deptTree"
                       :props="{ checkStrictly: true,label:'name',value:'id'}"
                       clearable></el-cascader>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click.native="saveFormVisible = false">取消</el-button>
        <el-button type="primary" @click.native="saveSubmit" :loading="saveLoading">提交</el-button>
      </div>
    </el-dialog>
  </section>
</template>

<script>
export default {
  data() {
    return {
      //  数据展示
      Departments: [], // 显示的数据
      listLoading: false, //盲加载
      // 分页查询
      totals: 0,
      pageSize: 5,
      currentPage : 1,
      // 高级查询
      keyword: '',
      // 批量删除
      sels: [],//列表选中列
      filters: {
        name: ''
      },
      // 添加和修改模型数据
      saveFormVisible: false,//新增界面是否显示
      saveLoading: false,
      title:'',
      managers:[], // 部门经理
      deptTree: [],  // 上级部门
      saveFormRules: {
        sn: [
          { required: true, message: '请输入部门编号', trigger: 'blur' },
        ],
        name: [
          { required: true, message: '请输入部门名', trigger: 'blur' }
        ]
      },
      //新增界面数据
      saveForm: {
        id: null,
        sn: '',
        name:'',
        state: 1,
        manager_id: null,
        parent_id: null
      },
    }
  },
  mounted() {
    this.getDepartments();
  },
  methods: {
    //1.获取部门列表
    getDepartments() {
      let para = {
        currentPage: this.currentPage,
        pageSize: this.pageSize,
        keyword: this.keyword
      };
      // 显示加载框
      this.listLoading = true;
      // 发送分页查询请求
      this.$http.post("/department",para).then(res=>{
        this.listLoading = false;
        this.Departments = res.data.data;
        this.totals = res.data.totals;
      }).catch(res=>{
        this.$message.error('系统繁忙，请稍后重试!!!');
      });
    },

    // 2.分页逻辑
    handleCurrentChange(currentPage) {
      this.currentPage = currentPage;
      this.getDepartments();
    },

    // 3.关键字查询
    keywordQuery() {
      this.currentPage = 1;
      this.getDepartments();
    },

    // 4.删除
    handleDel: function (index, row) {
      this.$confirm('确认删除该记录吗?', '提示', {
        type: 'warning'
      }).then(() => {
        this.listLoading = true;
        // 发送删除请求
        this.$http.delete("/department/" + row.id).then(res=>{
          this.listLoading = false;
          //NProgress.done();
          if(res.data.success) {
            this.$message('删除成功');
            // 当前总页数
            let totalPage = this.totals%this.pageSize==0?this.totals/this.pageSize
                :Math.ceil(this.totals/this.pageSize);
            if(this.currentPage > 1 && this.currentPage==totalPage && (this.totals-1)%this.pageSize==0){
              this.currentPage = this.currentPage - 1;
            }
            this.getDepartments();
          } else {
            this.$message('删除失败【500】');
          }
        }).catch(res=>{
          this.$message('系统繁忙，请稍后重试！！！');
        });
      }).catch(() => {

      });
    },
    // 选项改变时出发
    selsChange: function (sels) {
      this.sels = sels;
    },

    // 5.批量删除
    batchRemove: function () {
      var ids = this.sels.map(item => item.id); // map相当于遍历
      this.$confirm('确认删除选中记录吗？', '提示', {
        type: 'warning'
      }).then(() => {
        this.listLoading = true;
        this.$http.patch("/department",ids).then(res=>{
          this.listLoading = false;
          //NProgress.done();
          if(res.data.success) {
            this.$message('删除成功');
            this.currentPage = 1;
            this.getDepartments();
          } else {
            this.$message('删除失败【500】');
          }
        }).catch(res=>{
          this.$message('系统繁忙，请稍后重试！！！');
        });
      }).catch(() => {

      });
    },

    // 6.新增和编辑部门
    saveSubmit: function () {
      this.$refs.saveForm.validate((valid) => {
        if (valid) {
          let parent_id = this.saveForm.parent_id
          if(parent_id && parent_id.length == 0) {
            this.saveForm.parent_id = null;
          }
          if (parent_id && parent_id.length > 0) {
            this.saveForm.parent_id = parent_id[parent_id.length -1]
          }
          this.$confirm('确认提交吗？', '提示', {}).then(() => {
            this.saveLoading = true;
            this.$http.put("/department",this.saveForm).then(res=>{
              this.saveLoading = false;
              if (res.data.success) {
                this.getDepartments();
              } else {
                this.$message('操作失败【500】');
              }
            }).catch(res=>{
              this.$message.error("系统繁忙，请稍后重试！！！【400、404】")
            })
            this.saveFormVisible = false;
          });
        }
      });
    },
    //显示编辑界面
    handleEdit: function (index, row) {
      this.title = "编辑部门";
      this.getManagers(); // 获取所有经理
      this.getDeptTree(); // 获取
      this.saveForm = Object.assign({}, row);
      this.saveFormVisible = true;
    },
    //显示新增界面
    handleSave: function () {
      this.title = "新增部门";
      this.getManagers(); // 获取所有经理
      this.getDeptTree(); // 获取
      this.saveForm = {
        id: null,
        sn: '',
        name:'',
        state: 1,
        manager_id: null,
        parent_id: null
      };
      this.saveFormVisible = true;
    },
    // 获取部门经理通过员工获取
    getManagers() {
      this.$http.get("/employee").then(res=>{
        this.managers = res.data;
      })
    },
    // 获取层级的上级部门
    getDeptTree() {
      this.$http.get("/department/deptTree").then(res=>{
        this.deptTree = res.data;
      })
    },
  },

}

</script>

<style scoped>

</style>